Cross-head



E. HILL.

onoss HELD.

(N0 Model) P&tent6d Nov. 22

llllb NITED STATES ATENT @nmnn EBENEZER HILL, OB SOUTH NORWALK, CONNEOTICT.

CROSS-HEAD...

SPIICIPICATION forming part 01' Letters Patent N0. 373,661, dateitl November 22, 1887.

Application filed Mag" JG, 1887.

T0 aZZ w7wm it mczoy concern:

Be in ki1own that I, EBENEZER HILL, of Sonth Norwalk, in be connty 0f Fairfielrl nnd State of Oonnecbieub, have invented a ixew Imprevement in Cross-Heads; anti I (10 hereby deelare the i'ollowing, when tnken in conneebion with accoxnpnnying drawings and the letters of reference marked tl1ereon, 't0 be a full, elear, and exacb descripion of t-he Same, and which said clrawings eonstitute pnrt- 0f this speeificntion, and represent, in

Figure l, a t0p view 0f Ehe eross heacl com plete; Fig. 2, aside view of bl1e sonne; Fig. 3, an nnder side view 0f the Same; Fig. 4, a verbical section throngh the cross-head and soeket in thelongitudinal central lineofthe pistons; Fig. 5, a horizontal section through the pistonrod and socket, illustrating tbe key ad justment; Fig. 6, a seetion throngh t-he sooket a righb angles to the section in Fig. 4; Fig. 7, a modifieation.

'Ihis invention relates t0 an improvementin that dass 0f cross-heeds which are adapted for t-he nse 0f two connectingrods extending t0 two cmnks 0n the szmne shalt, and while applicnble to steam-engines in which such an an rangemeno 0f rods exists, il: is particularly applicable t0 tl1e dass of maehines kn0wn es componnd nir-eompressorsthab is t0 say, air-compressors employihg l3wo cylinders in ehe same longitudinal line, the crosshead being arranged in longitudinal g'uides, between the cylinders, ancl the piston-rods 0f t11e respeetive cylinders eonnected t0 the erosshead upon its opposite sides, be cross-head extendingto bhe right und left through seid gnides, the ende of the eonneeting rode by whieh reciproeating movement is imparted t0 the crosehead being applied one to each end of thecross-head, thus eonnecbing bhe eross-hend to two eranks npon the szune shaftn constrnction 0f air neinpressor coxn1nen und well known, and does n0b require particnlar illustration er description.

My invention relates particulnrly to the means 101 eonneeting the pistonrods to the cress-head, whereby convenience in take up and adjnstment is attained.

A. represents the cross head, whieh is 0f usnal shape, and is eonstrneted with a trun nion, B, npon euch end, by whichthe 13w0 counectingmocls are hnngto il; also in tbe usi1al (N0 model.)

manner. parallel With the plane in whieh Ehe pistons move, is a reeess, O. In this recess the pis ton-rocl soeket D is arrangecl. C[l1is socket; is lese in thiekness than the heighb 0f the opening, as seen in Fig. 4, so bhab the Socket may down. Vertically er ab right angles t0 the Socketapin,E, is inbrodnced hliiongh thesocket and rigidly held in tl1e cross-head, so es t0 be substantially a fixed pnrt 0f ehe eress-head. The socket is co nstrncted Witl1 avertical Opening 0f larger diameter than the pin E, zmd so that; the pin extending throngh tl1e opening in betwee-n the socket and pin. The tw0 ende of the socket D a1e eonstrncted to receix e the end of lshe respective rode, F G, the epenings f0r the end of the rode exbending t-hrough t0 the pin-opening, and t hat end 0f the two rode is eonstructed of a shape eorresponding t0 thc shape 0f the pin E, and so as 20 bear againsb the pin, as Seen in Figs. 4and 5. Transversely through the soeket, ab each side of the pin, a key-hole, H, is formed, whieh key-hole is in substantially the central plane 0f the respective pistonrods, and each pistoni0d 0011- structed with a corresponing key -hole, I. (See Fig. 4.) Through bhese key:holes keys J are driven, adapted t0 tanke abenring upon the onter end 0f the key-holes in the sockeb and the inner end of the keylxoles in the rods, as Seen in Fig. 5, t-he keys being teperingz. The driving in 0f the keys tends 130 force tl1e rode toward tl1e pin and bring their respeetive ends t0 a hard benring againsb the pin E, as indieated in Fig. 5. These keys through the twoj rods permit the aclj ustment of lhe erosshead in relation t0 the tw0 rods, es may be 1equired. "Ehe Socket is made adjustable verbieal1y in its reeess around Ehe pin E by setscrews K and L, one 19h rongl1 one side of the eross-head and the other through the opposite side, adapted t0 bear npon therespecbivefaces 0f the socket, as Seen in Fig. 2, and so thab by mezms 0f filme set-screws the sockeb may loe raised 0r lowered. witl1 relation t0 tl1e cr0sshead, es occasion 1nny reqnlre. Thus I provide a snbstantially universal adjnstment 01 alle soekeo and piston-rods with reletio n t0 the cross-head, und yet leave the sockel: substan- Through the cross-head, in a plane stand free in seid recess f0r movementnp er the socketpermibsalirnited arnonnbef freedom IOO tia1ly free upon the pinin the cross-head. The verbica1 adj ustment of the cross-head by 1neans 0f the seb-screws K L may be omitted und the longitudinal adjustmenb 0f the sockeb 0nly retained. The key-holes through the rods and through the sockets,with the keysintroduced, are a common means of adjustmenb, and f0r tbis may be substituted other equally wellknown meansas a nun. (Represented in Fig. 7.)

I clairnl. In a erosshead substantia]! y such as described, having an opening in the plane 0f the piston rods, the combination therewith 0f a pin through said recess, a socket arranged in said recess upon said pin, the opening through the socket being larger than the diameter 0f the pin, the said sockeb constructed upon op posite ends wibh an opening extendinginward to the said pin, two piston-rods exbending, respectivelyinto the end openings in thesocket, and the inner ends of the said piston-rods both restn'ng againsb the said pin, and adjusting devices, substantially such as described,bebween the said Socket and the said two piston-rods, respeetively, substantially as described, and whereby the cross head is made adjustable with re1ation to the two rods witahout changing the relation 0f tahe rods to each other.

2. In a cmss-head substantially such as detherewith 0f a pin throngh said recessasocket arranged in said recess upon the said pin, piston-rods, one secured 110 euch end of said socket, said socket made vertically adjustable in the reeess in the cross-head, substantially as deseribed.

3. In a cross-head substantially such as described, having an opening in the plane 0f the piston -rbds, the combination therewith of a pin through said recess, a sockeb arranged in said recess loose] y upon said pin, the said sockeb consbructed upon opposite ends with an opening extending inward to the said pin, two piston-rods extending, respectively, into the end openings in the Socket und adapted to bear upon the said pin, the socket and 'rods cou- 

